Lunar core sampling prospecting in-situ real-time power generation device while drilling

Abstract

The present invention belongs to the technical field of energy supply and power generation for lunar base drilling and sampling, and particularly relates to an in-situ real-time power generation device for lunar core sampling and prospecting while drilling. During the process of core drilling operation in lunar soil / rock, it absorbs the high-temperature frictional heat generated in the extreme drilling environment of the lunar vacuum without water, reduces the temperature of the bottom of the borehole and the drill bit, and at the same time utilizes the environmental temperature difference between the lunar surface and the bottom of the borehole to achieve in-situ power generation, providing in-situ energy power support for lunar core drilling and downhole logging instruments; after the core sampling operation is completed, the main structure of the drilling device enters the constant-temperature layer of lunar soil, and at this time, the temperature difference between the constant-temperature layer of lunar soil and the lunar surface is utilized to achieve continuous power generation day and night, establishing a lunar in-situ power generation system. The present invention utilizes the high-temperature heat during the process of lunar core drilling to generate electricity in real time, realizing the dual functions of reducing the temperature of the drill bit and in-situ power generation while drilling, ensuring the safe drilling of lunar core sampling, and constructing a temporary or permanent power generation system to provide continuous energy supply for lunar exploration activities.

Description

Technical Field

[0001] The invention belongs to the technical field of energy supply and power generation for lunar base drilling and sampling, and particularly relates to an in-situ real-time power generation device for lunar core sampling and prospecting while drilling. Background Art

[0002] Under the background of large-scale lunar exploration activities, lunar energy supply has become the primary problem. At present, the energy power supply of lunar exploration equipment mainly relies on methods such as solar energy and nuclear energy. Solar energy can only be used during lunar day, while the output energy of nuclear batteries is relatively low and can only meet the use of small-power scientific research instruments. Therefore, it is difficult to provide sustainable energy guarantee for large-scale lunar exploration activities only relying on solar energy or nuclear batteries, and there is an urgent need to develop new technologies for in-situ lunar energy supply.

[0003] In fact, when the depth of the lunar surface exceeds 1 m, both the lunar soil or lunar rock layer are constant temperature layers, and there is a large temperature difference between the constant temperature layer and the lunar surface; converting this temperature difference into energy that can be directly used on the moon is of great significance for realizing in-situ energy supply for lunar base activities, and developing lunar geothermal energy is a very potential direction. On the other hand, during the lunar base drilling process, high-temperature heat (1000 °C) will be generated. As a potential energy source, there is no relevant report on heat recovery for lunar base core drilling and prospecting. Using the high-temperature heat generated during the lunar base core drilling process for real-time power generation can achieve the dual effects of reducing the drill bit temperature and in-situ power generation while drilling, promoting and ensuring the safe drilling of lunar base core sampling, and providing continuous energy supply for lunar base exploration activities.

[0004] There is a lunar base true-fidelity core sampling multi-stage large-depth drilling system in the prior art, which solves the problem of core sampling operation for lunar soil, realizes the collection, excavation and transportation operations of lunar soil in a true-fidelity state, and at the same time increases the sampling volume of lunar soil core sampling.

[0005] However, this device cannot generate electricity during the process of drilling lunar soil, cannot recover and utilize the high-temperature frictional heat generated in the extreme lunar drilling environment, cannot convert heat energy into electrical energy, and cannot achieve continuous energy supply. Therefore, an in-situ real-time power generation device for lunar core sampling and prospecting while drilling is proposed. Summary of the Invention

[0006] The purpose of the invention is to provide an in-situ real-time power generation device for lunar core sampling and prospecting while drilling to solve the above problems.

[0007] To achieve the above purpose, the invention provides the following scheme:

[0008] An in-situ real-time power generation device for lunar core sampling and prospecting while drilling, comprising: a drilling and sampling mechanism, which is used for drilling in lunar soil / rock, and the drilling and sampling mechanism is also used for heat exchange with lunar soil / rock;

[0009] A phase change heat conduction mechanism is provided at one end within the drilling and sampling mechanism for heat exchange with the drilling and sampling mechanism.

[0010] An in-situ power generation mechanism is arranged between the drilling and sampling mechanism and the phase change heat conduction mechanism. The in-situ power generation mechanism can switch between a first power generation mode and a second power generation mode through the temperature difference between the drilling and sampling mechanism and the phase change heat conduction mechanism. In the first power generation mode, frictional heat is generated between the drilling and sampling mechanism and the lunar soil / rock. At this time, the drilling and sampling mechanism is the hot end, and the phase change heat conduction mechanism is the cold end. In the second power generation mode, the drilling and sampling mechanism is inside the lunar soil / rock. During lunar day, the drilling and sampling mechanism is the cold end, and the phase change heat conduction mechanism is the hot end. During lunar night, the phase change heat conduction mechanism is the cold end, and the drilling and sampling mechanism is the hot end.

[0011] Preferably, a heat radiation mechanism is further arranged on the phase change heat conduction mechanism. The heat radiation mechanism is located on the lunar surface and is used for heat exchange with the phase change heat conduction mechanism.

[0012] Preferably, a heat insulation mechanism is further arranged on the phase change heat conduction mechanism. The heat insulation mechanism is used for insulating the phase change heat conduction mechanism.

[0013] Preferably, the drilling and sampling mechanism is also drivingly connected to a power mechanism. The power mechanism is used to drive the drilling and sampling mechanism to sample lunar soil / rock.

[0014] Preferably, the drilling and sampling mechanism includes a housing. One end of the phase change heat conduction mechanism is arranged inside the housing. The housing is also used for conducting heat. The bottom end of the housing is detachably connected to a drill bit. Sampling holes for sampling are provided on the drill bit. The heat generated during sampling by the drill bit is transferred to the housing.

[0015] Preferably, the phase change heat conduction mechanism includes a heat conduction tube. The bottom end of the heat conduction tube is coaxially arranged inside the housing.

[0016] Preferably, the in-situ power generation mechanism includes a plurality of thermoelectric module groups. The thermoelectric module groups are arranged between the outer side wall of the heat conduction tube and the inner side wall of the housing. The plurality of thermoelectric module groups are equidistantly arranged from top to bottom along the length direction of the housing. Each thermoelectric module group includes a plurality of thermoelectric modules. The plurality of thermoelectric modules are circumferentially equidistantly arranged. The two ends of each thermoelectric module are respectively attached to the outer side wall of the heat conduction tube and the inner side wall of the housing.

[0017] Preferably, the heat radiation mechanism includes a plurality of radiation plates. The plurality of radiation plates are circumferentially equidistantly arranged on the outer side of the heat conduction tube. All the radiation plates are located on the lunar surface. The radiation plates are used for transferring heat to the heat conduction tube.

[0018] Preferably, the power mechanism includes a drilling rig, the output shaft of the drilling rig is drivingly connected to the heat conduction tube through a joint, and the radiation plate is detachably connected to the outer side wall of the joint.

[0019] Preferably, the heat conduction tube includes a heat pipe, the bottom end of the heat pipe is coaxially arranged in the housing, the top end of the heat pipe is connected to the joint, a heat insulation mechanism is sleeved outside the heat pipe, and a heat conduction structure is arranged inside the heat pipe / on the inner side wall of the heat pipe, and the radiation plate is used to transfer heat to the heat conduction structure.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] In the present invention, the lunar soil / rock is sampled by the core drilling and sampling mechanism. During the core drilling operation of the lunar soil / rock, the high-temperature frictional heat generated in the extreme drilling environment of the lunar vacuum without water is absorbed, and the in-situ power generation is realized by using the environmental temperature difference between the lunar surface and the bottom of the borehole, reducing the temperature inside the borehole and the drill bit, and providing in-situ energy power support for the lunar-based core drilling and logging-while-drilling instruments; after the core sampling operation is completed, the main structure of the drilling device enters the lunar soil constant temperature layer. At this time, the temperature difference between the lunar soil constant temperature layer and the lunar surface is used to realize continuous power generation day and night, and a lunar-based in-situ power generation system is established. The present invention uses the high-temperature heat during the lunar-based core drilling process to generate electricity in real time, realizing the dual effects of reducing the drill bit temperature and in-situ power generation while drilling, promoting the lunar-based core drilling, and at the same time can be used as a temporary or permanent power generation device to provide continuous energy supply for lunar-based exploration activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure at the drill bit in the present invention;

[0025] Figure 3 It is a cross-sectional view of the drill bit in the present invention;

[0026] Among them, 1, radiation plate; 2, vacuum insulation layer; 3, heat conduction tube; 4, thermoelectric module; 5, housing; 6, drill bit; 7, drilling rig; 8, transmission shaft; 9, joint; 3.1, heat pipe; 3.2, heat conduction structure. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the context of large-scale lunar exploration activities, lunar energy supply has become a primary issue. At present, the energy and power supply of lunar exploration equipment mainly relies on solar energy and nuclear energy. Solar energy can only be used during the lunar day, while nuclear batteries have low output energy and can only meet the needs of low-power scientific research instruments. Therefore, it is difficult to provide sustainable energy security for large-scale lunar exploration activities by relying solely on solar energy or nuclear batteries. It is urgent to develop new technologies for lunar in-situ energy supply.

[0030] Thermovoltaic power generation technology is a process that directly converts thermal energy into electrical energy, that is, the heat generated by the temperature difference between high and low temperatures is used to convert mobile thermal energy into electrical energy. It is an effective energy conversion method that can work in extreme environments. Since the moon is in an extreme vacuum and waterless environment, lunar-based drilling and coring exploration is actually a friction heat generation process of waterless dry drilling. The heat in the hole cannot be effectively discharged, and the maximum temperature of the drill bit can reach 1000°C. Recycling the high-temperature friction heat generated by lunar-based dry drilling can simultaneously achieve lunar-based in-situ power generation and effective coring exploration. In recent years, with the deepening of lunar exploration, human demand for lunar energy has become increasingly severe, and the existing lunar energy sources have obvious limitations. There have been no reports on heat recovery for lunar-based drilling and coring exploration. Using the high-temperature heat generated during lunar-based coring drilling to generate electricity in real time can achieve the dual effects of reducing drill bit temperature and in-situ power generation while drilling, promote the safe drilling of lunar-based coring, and provide continuous energy supply for lunar-based exploration activities.

[0031] Reference Figures 1 to 3 The present invention discloses a lunar-based coring prospecting in-situ real-time power generation device while drilling, comprising: a drilling sampling mechanism, the drilling sampling mechanism is used to drill into the lunar soil / rock, and the drilling sampling mechanism is also used to perform heat exchange with the lunar soil / rock;

[0032] A phase-change heat-conducting mechanism, one end of which is disposed in the drilling and sampling mechanism and is used for heat exchange with the drilling and sampling mechanism;

[0033] An in-situ power generation mechanism is arranged between the drilling and sampling mechanism and the phase change heat conduction mechanism. The in-situ power generation mechanism can switch between the first power generation mode and the second power generation mode through the temperature difference between the drilling and sampling mechanism and the phase change heat conduction mechanism. In the first power generation mode, frictional heat is generated between the drilling and sampling mechanism and the lunar soil / rock. At this time, the drilling and sampling mechanism is the hot end, and the phase change heat conduction mechanism is the cold end; in the second power generation mode, the drilling and sampling mechanism is located inside the lunar soil / rock. During lunar day, the drilling and sampling mechanism is the cold end, and the phase change heat conduction mechanism is the hot end. During lunar night, the phase change heat conduction mechanism is the cold end, and the drilling and sampling mechanism is the hot end. In the present invention, the lunar soil / rock is sampled by the drilling and sampling mechanism. When the drilling and sampling mechanism samples, a large amount of heat is generated by friction with the lunar soil / rock. At this time, the drilling and sampling mechanism serves as the hot end. On the one hand, the phase change heat conduction mechanism conducts the heat of the drilling and sampling mechanism to reduce the temperature of the drilling and sampling mechanism. On the other hand, the phase change heat conduction mechanism serves as the cold end. At this time, the in-situ power generation mechanism generates electricity through the temperature difference between the drilling and sampling mechanism and the phase change heat conduction mechanism; after the sampling is completed, the drilling and sampling mechanism is located inside the lunar soil / rock. During lunar day, the drilling and sampling mechanism is the cold end, and the phase change heat conduction mechanism is the hot end. During lunar night, the phase change heat conduction mechanism is the cold end, and the drilling and sampling mechanism is the hot end. The in-situ power generation mechanism generates electricity through the temperature difference between the drilling and sampling mechanism and the phase change heat conduction mechanism. In this application, electricity is generated by recovering the heat during sampling of the drilling and sampling mechanism, and at the same time, a thermovoltaic power generation device is integrated to achieve continuous power generation, which is not affected by working conditions and the time of lunar day / night.

[0034] In a further optimized solution, a heat radiation mechanism is further arranged on the phase change heat conduction mechanism. The heat radiation mechanism is located on the lunar surface and is used for heat exchange with the phase change heat conduction mechanism.

[0035] In a further optimized solution, a heat insulation mechanism is further arranged on the phase change heat conduction mechanism. The heat insulation mechanism is used for heat insulation of the phase change heat conduction mechanism.

[0036] In a further optimized solution, the drilling and sampling mechanism is also drivingly connected to a power mechanism. The power mechanism is used to drive the drilling and sampling mechanism to sample the lunar soil / rock.

[0037] In a further optimized solution, the drilling and sampling mechanism includes a housing 5. One end of the phase change heat conduction mechanism is arranged inside the housing 5. The housing 5 is also used for conducting heat. The bottom end of the housing 5 is detachably connected to a drill bit 6. The drill bit 6 is provided with a sampling hole for sampling. The heat generated during sampling by the drill bit 6 is transferred to the housing 5. Among them, the housing 5 is a heat-conducting shell made of heat-conducting material; the drill bit 6 is threadedly connected to the housing 5. By extending the length of the thread, the heat conduction efficiency between the drill bit 6 and the housing 5 can be effectively increased.

[0038] In a further optimized solution, the phase change heat conduction mechanism includes a heat conduction tube 3. The bottom end of the heat conduction tube 3 is coaxially inserted into the housing 5.

[0039] For a further optimized solution, the in-situ power generation mechanism includes multiple thermoelectric module groups which are arranged between the outer sidewall of the heat conduction tube 3 and the inner sidewall of the housing 5. The multiple thermoelectric module groups are arranged at equal intervals from top to bottom along the length direction of the housing 5. Each thermoelectric module group includes multiple thermoelectric modules 4 which are arranged at equal intervals circumferentially. The two ends of each thermoelectric module 4 are respectively in contact with the outer sidewall of the heat conduction tube 3 and the inner sidewall of the housing 5.

[0040] For a further optimized solution, the heat radiation mechanism includes multiple radiation plates 1 which are arranged at equal intervals circumferentially on the outer side of the heat conduction tube 3. The multiple radiation plates 1 are all located on the lunar surface and are used to transfer heat to the heat conduction tube 3.

[0041] For a further optimized solution, the heat insulation mechanism includes: a vacuum insulation layer 2 which is arranged on the outer side of the heat conduction tube 3. A vacuum cavity is formed between the vacuum insulation layer 2 and the heat conduction tube 3 and is used to insulate the heat conduction tube 3.

[0042] For a further optimized solution, the power mechanism includes a drill 7. The output shaft of the drill 7 is in transmission connection with the heat conduction tube 3 through a joint 9. The radiation plate 1 is detachably connected to the outer sidewall of the joint 9.

[0043] For a further optimized solution, the heat conduction tube 3 includes a heat pipe 3.1. The bottom end of the heat pipe 3.1 is coaxially inserted into the housing 5. The top end of the heat pipe 3.1 is connected to the joint 9. A heat insulation mechanism is sleeved outside the heat pipe 3.1. A heat conduction structure 3.2 is arranged inside the heat pipe 3.1 / on the inner sidewall of the heat pipe 3.1. The radiation plate 1 is used to transfer heat to the heat conduction structure 3.2. Among them, the heat conduction structure 3.2 is a capillary structure which is opened inside the heat pipe 3.1 or arranged on the inner sidewall of the heat pipe 3.1. A heat conduction medium (working fluid) is arranged inside the heat conduction structure 3.2 and is used to accelerate the transfer of heat.

[0044] Working principle:

[0045] When the drill string is used for coring drilling in a lunar-based environment, since there is no circulating medium in the borehole, it is actually a heat generation process by friction during dry drilling without water, and the highest temperature at the drill bit end can reach nearly 1000 °C. The high temperature generated by the drill bit 6 is conducted to the outer shell 5. A vacuum insulation layer 2 is arranged outside the heat conduction tube 3 to form a heat preservation cavity, trying to avoid heat conduction to the lunar soil / rock area. The contact between the thermoelectric module 4 and the outer shell 5 forms the hot end, and the contact between the thermoelectric module 4 and the heat conduction tube 3 forms the cold end. When one end of the heat conduction tube 3 is heated by the heat source conducted from the outer shell 5, the internal working medium absorbs heat and evaporates to form steam; the steam quickly flows along the heat conduction structure 3.2 inside the heat pipe 3.1 to the colder end under the promotion of the capillary effect; at the colder end, the steam condenses into liquid and releases heat. The condensed liquid flows back to the hotter end through the heat conduction structure 3.2 to complete the cycle, realizing the transfer of heat from the hot end to the cold end. Through the above process, the heat exchange between the high temperature heat generated during drill bit drilling and the lunar surface heat source can be realized. By using the temperature difference between the high temperature generated by lunar-based coring exploration and the lunar surface, the temperature difference is converted into electrical energy through an integrated thermovoltaic generator. This thermoelectric module is a power generation device that directly converts thermal energy into electrical energy using the Seebeck effect.

[0046] After the borehole is completed, during the lunar day / night, the two sides of the thermoelectric module 4 respectively absorb the heat between the lunar soil / rock constant temperature layer and the lunar surface. The temperature can reach up to 127 °C during the lunar day. The temperature of the lunar surface is conducted down through the radiation plate 1 to form the hot end, forming a temperature difference with the cold end at a temperature of about -20 °C in the lunar soil / constant temperature layer; the temperature can reach as low as -183 °C during the lunar night. The heat of about -20 °C in the lunar soil / rock constant temperature layer is conducted to the outer shell 5 to form the hot end, and the temperature of the lunar surface is conducted down through the radiation plate 1 to form the cold end. By using the temperature difference between the outer shell 5 and the lunar soil / rock constant temperature layer during the lunar day / night, the temperature difference is converted into electrical energy through an integrated thermovoltaic generator. This device can achieve continuous power generation without interruption whether during coring drilling or after the borehole is completed, and is not affected by the working conditions and the time of the lunar day / night.

[0047] The installation and fixation process of the device of the present invention is as follows: The first step is to transport the device to the target location through lunar exploration equipment; the second step is to perform precise positioning at the target location and fix the device in the lunar soil / rock through lunar exploration equipment; the third step is to start the device and drill into the lunar soil / rock to reach the predetermined depth for sampling; the fourth step is to generate electricity through the in-situ power generation mechanism during the sampling process, and the output power supplies power to the downhole logging-while-drilling instrument or lunar surface instrument equipment; the fifth step is after the sampling is completed, use a specific storage cabin to store the core samples, use the fixing device to fix the heat conduction tube 3 and the vacuum insulation layer 2 in the lunar soil / rock, construct a temporary or permanent in-situ power generation system, and at the same time, the series connection method of multiple power generation devices can be used to continuously supply power to the lunar surface instrument equipment.

[0048] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0049] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A lunar-based coring prospecting in-situ real-time power generation device while drilling, characterized in that: include: A drilling and sampling mechanism, the drilling and sampling mechanism is used to drill into the lunar soil / rock, and the drilling and sampling mechanism is also used to perform heat exchange with the lunar soil / rock; A phase-change heat-conducting mechanism, one end of which is disposed in the drilling and sampling mechanism and is used for heat exchange with the drilling and sampling mechanism; An in-situ power generation mechanism is arranged between the drilling and sampling mechanism and the phase change heat conduction mechanism. The in-situ power generation mechanism can switch between a first power generation mode and a second power generation mode through the temperature difference between the drilling and sampling mechanism and the phase change heat conduction mechanism. In the first power generation mode, friction heat is generated between the drilling and sampling mechanism and the lunar soil / rock. At this time, the drilling and sampling mechanism is a hot end and the phase change heat conduction mechanism is a cold end. In the second power generation mode, the drilling and sampling mechanism is located inside the lunar soil / rock. During the lunar day, the drilling and sampling mechanism is a cold end and the phase change heat conduction mechanism is a hot end. During the lunar night, the phase change heat conduction mechanism is a cold end and the drilling and sampling mechanism is a hot end. A heat radiation mechanism is also provided on the phase-change heat-conducting mechanism, the heat radiation mechanism is located on the lunar surface, and the heat radiation mechanism is used for heat exchange with the phase-change heat-conducting mechanism; The phase-change heat-conducting mechanism is also provided with a heat-insulating mechanism, and the heat-insulating mechanism is used to keep the phase-change heat-conducting mechanism warm; The drilling and sampling mechanism is also connected to a power mechanism, and the power mechanism is used to drive the drilling and sampling mechanism to perform lunar soil / rock sampling; The drilling sampling mechanism comprises a housing (5), one end of the phase change heat conducting mechanism is arranged in the housing (5), the housing (5) is also used for conducting heat, a drill bit (6) is detachably connected to the bottom end of the housing (5), a sampling hole for sampling is provided on the drill bit (6), and the heat generated by the drill bit (6) during sampling is transferred to the housing (5); The phase-change heat-conducting mechanism comprises a heat-conducting pipe (3), the bottom end of the heat-conducting pipe (3) being coaxially inserted into the outer shell (5); The in-situ power generation mechanism comprises a plurality of thermoelectric module groups, the thermoelectric module groups are arranged between the outer wall of the heat pipe (3) and the inner wall of the outer shell (5), the plurality of thermoelectric module groups are arranged at equal intervals from top to bottom along the length direction of the outer shell (5), the thermoelectric module groups comprise a plurality of thermoelectric modules (4), the plurality of thermoelectric modules (4) are arranged at equal intervals in the circumferential direction, and the two ends of the thermoelectric modules (4) are respectively in contact with the outer wall of the heat pipe (3) and the inner wall of the outer shell (5).

2. The lunar-based coring prospecting in-situ real-time power generation device according to claim 1 is characterized in that: The heat radiation mechanism comprises a plurality of radiation plates (1), the plurality of radiation plates (1) being arranged at equal intervals in the circumferential direction on the outside of the heat conducting pipe (3), the plurality of radiation plates (1) being located on the lunar surface, and the radiation plates (1) being used to transfer heat to the heat conducting pipe (3).

3. The lunar-based coring prospecting in-situ real-time power generation device according to claim 2 is characterized in that: The power mechanism comprises a drilling machine (7), the output shaft of the drilling machine (7) is transmission-connected to the heat-conducting pipe (3) via a joint (9), and the radiation plate (1) is detachably connected to the outer side wall of the joint (9).

4. The lunar-based coring prospecting in-situ real-time power generation device according to claim 3 is characterized in that: The heat-conducting pipe (3) comprises a heat pipe (3.1), the bottom end of the heat pipe (3.1) is coaxially inserted into the outer shell (5), the top end of the heat pipe (3.1) is connected to the joint (9), the outer side of the heat pipe (3.1) is sheathed with the heat-insulating mechanism, a heat-conducting structure (3.2) is arranged inside the heat pipe (3.1) / on the inner side wall of the heat pipe (3.1), and the radiation plate (1) is used to transfer heat to the heat-conducting structure (3.2).

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